16500051427 has 2 divisors, whose sum is σ = 16500051428. Its totient is φ = 16500051426.

The previous prime is 16500051361. The next prime is 16500051457. The reversal of 16500051427 is 72415000561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16500051427 - 2¹⁹ = 16499527139 is a prime.

It is not a weakly prime, because it can be changed into another prime (16500051457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8250025713 + 8250025714.

It is an arithmetic number, because the mean of its divisors is an integer number (8250025714).

Almost surely, 2^16500051427 is an apocalyptic number.

16500051427 is a deficient number, since it is larger than the sum of its proper divisors (1).

16500051427 is an equidigital number, since it uses as much as digits as its factorization.

16500051427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 31.

Adding to 16500051427 its reverse (72415000561), we get a palindrome (88915051988).

The spelling of 16500051427 in words is "sixteen billion, five hundred million, fifty-one thousand, four hundred twenty-seven".